<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        h3 {
            background-color: pink;
            width: 118px;
            height: 40px;
            font-size: 14px;
            font-weight: 400;
            line-height: 40px;
            background-image: url(images/icon.png);
            background-repeat: no-repeat;
            background-position: -30px;
            text-indent: 1.5em;
            position: absolute;
        }
        /* 背景图片位置 */
        body{
            /* background-position:20px 50px(x和y轴顺序不能变) */
            /* background 20px center混合单位 x，y序不变 */
            background-image: url(images/背景.jpg);
            background-repeat: no-repeat;
            background-position:center 40px;
        }
    </style>
</head>

<body>
    <h3>成长守护平台</h3>
</body>

</html>